Assessment of pile driving refusal using the standard test (SPT)

Gallage, C., Adam, B., & Look, B. (2010) Assessment of pile driving refusal using the standard test (SPT). In Williams, A.L., Pinches, G.M., Chin, C.Y., McMorran, T.J., & Massey, C.I. (Eds.) Proceedings of the 11th IAEG Congress, CRC Press/Taylor and Francis, Auckland, pp. 2614-2648.

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The design of driven pile foundations involves an iterative process requiring an initial estimate of the refusal level to determine the depth of boreholes for subsequent analyses. Current procedures for determining borehole depths incorporate parameters typically unknown at the investigation stage. Thus, a quantifiable procedure more applicable at this preliminary stage would provide greater confidence in estimating the founding level of driven piles. This paper examines the effectiveness of the Standard Penetration Test (SPT) in directly estimating driven pile refusal levels. A number of significant correlations were obtained between SPT information and pile penetration records demonstrating the potential application of the SPT. Results indicated pile penetration was generally best described as a function of both the pile toe and cumulative shaft SPT values. The influence of the toe SPT increased when piles penetrated rock. A refusal criteria was established from the results to guide both the estimation of borehole depths and likely pile lengths during the design stage.

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ID Code: 38964
Item Type: Conference Paper
Refereed: Yes
Keywords: Pile Driving, Set Values, SPT, Pile Refusal, Layered Soils
ISBN: 9780415600347
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Geotechnical Engineering (090501)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2010 The Japanese Geotechnical Society. All rights reserved.
Deposited On: 02 Dec 2010 22:24
Last Modified: 29 Feb 2012 14:24

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